Box



5 Shets-Sheet 1 Sept. 2l 1926. Y

H. B. WALTER BOX l Filed Jan. 20, 1923 Sept. A21 1926. l1,600,260v

H. B. WALTER Filed Jan. 2o. 1923 5 sheets-sheet 2 i Sept. 21 1926.

H. B. WALTER BOX Filed Jan. 20. 1923 3 Sheets-Sheet 3 Patented Sept. 21, 1926.

UNITED STATES PATENT OFFICE.

HARRISON B. WALTER, OF CHICAGO, ILLINOIS, ASSIGNOR T0 CHICAGO MILL AND LUM- BER COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

BOX.

Application led Januar-y2@ 1923. Serial No. 613,813.

This invention relates to improvements in boxes made of paper or fibre board and consists of the matters hereinafter described and more particularly pointed out in the appended claim.

The invention relates in general to a box made from a single blank cut and creased to fold into box form. The box of the present application involves certain novel and distinctiye improvements in the locking means or devices, whereby it may be quickly set up in box form ready for packing, without riveting or stapling, or ot er joining or attaching means, and may be closed with the closure member or members secured against displacement through the ordinary jars, blows or falls which occur in shipping or handling. The improved box thus presents an ideal shipping` case for parcel post, since, although its parts are securely locked and closed without the necessity for the use of sealing means of any kind, the closure, should the postal regulations require it, may be opened for inspection and again closed without damaging the locking and holding members of the box.

The advantages of the improved box will appear more fully as I proceed with my specification.

In the drawings Fig. 1 represents a perspective view of the improved box as it appears when set up and closed.

Fig. 2 is a view representing on a somewhat enlarged scale a transverse section through the box in a plane indicated by the line 2 2 of- Fig. 1. l

Fig. 3 is a view representing a lon itudinal section of the box in a plane in icated by the line 3 3 of Fig. 1.

Fig. 4 is a plan view of the blank from which the box is made.

Figs. 5, 6 and 7 represent end views of the box-Fig. 5, when set up with its closure in open position; Fig. 6, in onestage of the process of closure; and Fig. 7, when the box is closed.

Fi 8 is a detail vertical section taken on the line 8 8 of Fig. 7.

Fig. 9 is a perspective view of a modified form of box embodying my invention.

Fig. 10 is a top plan view of the blank l from which the box shown in Fig. 9 is made.

Referring now to that embodlment of the relatively projecting ton The arts of the box constituting a tubui lar bo y, namely, the sides 10, bottom 11 and top closure 13, are laid out side by side on the blank 14 (shown in Fig. 4 with corresponding box and blank parts indicated by the same numerals) with the bottom 11 in the middle, the sides 10, 10, at each side thereof, and the closure, in this case made in two parts, 13a, 13 at the end or ends of the blank.

The ends of the box are closed by extensions at the ends of the several parts 11, 10, 11 and 13a, 13, which form the tubular body of the box. 11a indicates the end extensions of the bottom part 11 of the box; 10a, 10a, the end extensions of the side parts of the box; and 13", 13", theI end extensions of the top closure flaps of the box. The blank 14 is creased along parallel, spaced, transverse lines 15 to define the width of the several parts of the box, said lines being prolonged by means of cuts 15a to separate the end extensions of the said parts and is creased along longitudinally extending parallel lines 16 which define the length of the box.

The end extensions 1()a of the sides of the box are preferably made of a length approaching one-half the width of the bottom section 11 of the box, but may be made shorter if desired. Each of the end extensions 10*l of the sides of the box is provided with an inclined slot 10b, which begins at the crease line 16 at a point at or near the lon itudinal median line of the extension an is inclined towards the end of the blank and away from said crease line 16. The angle of the inclination of said slot, .as shown, is approximately 45. l

Each end extension 1l* of the bottom part 11 of the box is provided at each side with a ell". As'shown, each tongue has a latera ly extending hook 11, the hooks Yof the two tongues of an end extension projecting towards the middle of the extension or toward each other. As shown, and preferably, the end extension 11 or crease 15 andwith a laterally projectingl intermediate the tongues 11b. is of the same length as itis at the location of the tongues, although this is not essential.

The extensions 13b o f the closure flaps 13a are cut away to provide on each extension an inclined side 13 adjacent the hinge line tongue 13d which overhangs said inclined `forming parts of the blank are locked in the slot, as shown in Fig. 5. The

hook securely locksL the tongue in the slot reason of the fact that the horizontal projection of the slot 10", when the blank is in box form, is less than 'the width of the tongue 11b with its hook 11, as clearly shown. The ,tongues with their hooks are inserted in the respective slots by slightly bending the tongues transversely, which permits the hook to be first passed through the slot, whereupon the main body of the tongue will readily follow. When the bottom end extensions 11a are flattened out against the proximate side end extensions 10, with tongues-and hooks 11", 11 engaged in the slots 10", it is apparentd'that the bottom end extensions will be securely locked to the two side end extensions: and it will be further apparent that a pocket or space 17 will be provided at the top end of each extension 11, between the end 11 and the extension 10, said pocket extending between the proximate ends of the slots 10".

After the boxis packed, the one closure iiap 13EL is folded down upon the top of the box and each end extension 13b is inserted into the pocket 17, its laterally extending hook 13dv being engaged into an associated slot 10h back of the tongue 11", as shown in Figs. 6 and 8. The other flap 13"L is then folded down to overlap the first named fiap and its end extension 13h is inserted into the pocket 17 'with its hook 13d engaged in the other slot 10b. This manifestly securely locks the closure flaps in closed relation.

In Figs. 9 and 10 are illustrated a somewhat modified form of the box and lof 'a blank for' making the same. In this case, 21

indicates the bottom part of the box; and 20,

202 the sides of the box. The top closure in tins case, consists of a single part or iap 23 at one end ofthe blank, which is of a width to entirely cover the top of the box.

Each of the parte of the box constituting its tubular body are provided with extensions as before,-namely, end extensions 21, 21a for the bottom part 21; end extensions 20a, 20a for each of the side parts 20; and end extensions 23h, 23b for the single top closure part 23. In addition, there is provided at the end of the blank opposite to that having iap 23a, which is adapted to be folded under the main top closure flap and to provide a support for its free end.

The parts of the blank are definedA by crease lines 25 and 26 as before and the end lextensions are separated by cuts or slots 25.

21h, indicates the relatively Iprojecting ton ues at the sides of the end extensions of theaottom, and 21, the laterally projecting hook on. said tongues. 20b indicates the inclined slots in the end extensions 20 of the side parts 20.

The end extensions ofthe top closure part 23 have inclined sides 23c and on one of said 4sides is provided in the case of each extension, a singlelaterally projectin tongue 23d which overhangs the associate inclined edge 23.

The box is in this 4case set up as before with the tongues and hooks 21", 21c of the end extensions of the bottom engaged in the slots 201 of the end extensions of the sides. This locks the parts into-'the form of an open top box, ready for packing. After packing or when the box is to be'closed, the short fiap 23 being first folded downwardly into horizontal position, the single closure part the top closure fiap 23,'a short 23 is folded down to close the box, the end extensions 23b at the same .time being inserted in the pockets 27 at'the ends o the box, and the single tongue 23d on each end extension being 'engaged in' an associated v slot 2()b back of the tongue 21b engaged therein.

A sealing strip 28 connecting the free end of the closure flap 23 with the adjacent side wall of the box may be used if desired.

It will be manifest that in aconstruction `of the kind, the top closure flap will be securely locked in place and yet that its extensions and the ton ue 23d 'carried thereby, may be disengaged w en desired without destroying or rendering ino erative the locking devices of the box, w en the closure is again locked in position. l

While in describing the invention'I have referred to many details of construction and arrangemeni/ of parts, it is to be understood that the invention is in no 4way limited thereto except as may be pointed out in the appended claim.

I claim as my invention:

A boxmade from fibre or paper board,

extensions ofthe bottom being folded.

against the end extensions of the sides, said end extensions of the sides having angularly disposed slot-s therein and said end extensions of the bottom having laterally spaced, hooked tongues adapted to be inserted in said slots, the projection of each of said slots on the line of foldvof the associated end extensions of the bottom bein less in length than the projected width o? the associated hooked tongueon said line, said extensions of the sides and bottom roviding, when locked together, pockets ocated below the top of the box, andthe end exten-A sions of the top closure. being adapted to be inserted into said pockets, each end extension of the top \closure' having a laterally extending tongue which is adapted for hooked engagement back of the hook on the tongue of the end extension of the bottom to lock said closure flaps in closed position. 20

In testimony that I claim the foregoing as my invention, I alix my signature this 18th day of January, A.' D. 1923.

e HARRISON `B. WALTER.V 

